/*
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 * and open the template in the editor.
 */

package cl.tienda.control;

import cl.tienda.modelo.Carrito;
import cl.tienda.modelo.Producto;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Vector;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Izra
 */
public class ServletCFinalizarCompra extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Fin de la sesion</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Sesion finalizada.</h1>");
            out.println("<p><a href='login.html'>Ir al inicio</a></p>");
            out.println("</body>");
            out.println("</html>");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doPost(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        //processRequest(request, response);
        
        HttpSession sesion = request.getSession();
        Vector<Carrito> carritoCompra = (Vector<Carrito>)sesion.getAttribute("carrito");
        Vector<Producto> productos = (Vector<Producto>)sesion.getAttribute("productos");
        
        for ( int i = 0; i < carritoCompra.size(); i++ )
        {
            //Obtener el producto pedido por medio del vector productos
            Producto prodTemp = carritoCompra.get(i).getProducto();
            //Actualizar stock del producto
            int stockActualizado = prodTemp.getStock() - carritoCompra.get(i).getCantidadPedida();
            prodTemp.setStock(stockActualizado);
            //Obtener el indice del producto a actualizar
            int indiceActualizar = carritoCompra.get(i).getCodigo();
            //Remover ese elemento
            productos.remove(indiceActualizar);
            //Actualizar informacion
            productos.add(indiceActualizar, prodTemp);
        }
        
        //actualizar la sesion del vector producots
        sesion.setAttribute("productos", productos);
        //eliminar la sesion que tenia la informacion del carrito de compras
        sesion.removeAttribute("carrito");
        PrintWriter out = response.getWriter();
        //imprimarPagina(out, productos);
        processRequest(request, response);
        out.close();
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
